hey guys got another brain racker. this time its a customers gun. its an old springfield 187m semi auto tube feed 22 it fires it ejects it just wont fire more than one at a time. i load it cock it fire it ejects but doesnt reset the fireing pin. ive cleaned everything and no changes. please help i know this gun is old and scouting the internet tells me its prone to jam but id atleast like to know because im stumped.